A midnight picnic, Karai says. She's always wanted to try one. Raph had complained until she'd offered booze and he'd instantly perked up. Leo would follow them both anywhere just to recapture that shine in their eyes.
They slip out of their rooms while everyone else is asleep, creeping down the halls. Leo wrestles a big white blanket out of the linen closet while Raph raids the kitchen and Karai gathers the booze she smuggled in into a bag.
Karai and Raph make a game out of it, exchanging exaggerated shushes and strutting around on their tip toes like amateur ballerinas, while Leo casts frantic glances at his at the others' doors and tries not to panic. Things are still....weird with the others, with the complexities of their emerging relationship, and no one except Shini seems to be entirely comfortable with it yet.
"Relax," KaraI whispers, brushing her hand along his hip in that way that always sends shivers up Leo's spine. "We don't want you getting wrinkles, Fearless." She's only recently started using Raph's nickname for him, and Leo can't ignore the warm flush in his belly at the sound.
They make their way through the sewers, creep up topside. It's difficult for Leo to manage his load, so that he has to rely on staircases and sidewalks like a peasant, and Karai's inability to choose to the right rooftop doesn't help matters. Raph's already given up and started trying to snatch a beer from her case when she spots the perfect one.
Leo slings the blanket off his shoulders and tosses it onto the concrete, edges fluttering like a white ghost as he carefully smooths it down. Raph pulls out the food--mostly apples, since he's not on good enough terms with Ice Cream Kitty to get anything from the fridge without her blabbing to Mikey.
("She can't talk, Raph," Karai pointed out.
"You'd be surprised," he shot back, and Leo nodded).
They settle down, side by side. Raph and Karai exchange sips of wine while Leo begs off, ignoring their smirks and the kisses they exchange as they trade the bottle back and forth. He wants to keep his head clear, at least for now, to help sink these memories into his brain. 
They're just high enough above the city lights to catch a glimpse of the stars and Leo smiles at the sight, feeling a knot unwind on his stomach at the swirl of black and white overhead. The moon looks like a little coin tossed into a sea of sparks, the light glimmering and dancing before their eyes.
"Beautiful," he breathes.
"Isn't it?" Karai says. She points out up, narrowing her eyes. "Those ones look like a sword."
"I think it's Orion's Belt," Leo points out, squinting so he can see it better.
"That's what some of the people who looked up there thought," Karai muses. "But to me it looks like a sword."
"Or a dick," Raph chimes in. Leo blushes and Karai giggles.
"O-or a spaceship," Leo says. Because if he really lets himself think about it, that little cluster of lights could be mistaken for a spaceship, sinking down into or rising up from Earth's atmosphere.
"We'll have ta be careful, then," Raph murmurs, tracing a casual hand across Leo's thigh. "If Fearless ever meets aliens who don't wanna kill him, he'll let them take 'im away in a heartbeat."
"Not on our watch," Karai replies, her fingers slithering across Leo's plastron. He sucks in a breath, but she's only reaching for the food. "Apples, anyone?"
Raph wants to cut the fruit up with his sai, but Leo talks him into letting Karai use a smaller nice. They end up feeding the pieces to each other, so that every slice of apple comes with the soft brush of fingers. Karai playfully nibbles on Raph's fingers and he lets out a mock-growl, feinting towards her before Karai intercepts him with a kiss.
Then Raph's sliding his finger into Leo's mouth even though he's already swallowed the apple, rolling them across his tongue in a way that's unmistakable. He sucks in a breath and his nostrils flare with the change in their scents, the hunger in their eyes as they look at him.
Leo glances around, heart picking up a notch. They appear to be alone, yes, but they're so exposed, and if someone were to find them now--
"Hey," Karai whispers, leaning forward to nibble at his neck. "It's okay. You're safe with us, Fearless." Raph nods, his free hand petting Leo's side soothingly.
Does he trust them? Always; he doesn't think he could feel otherwise if he tried. Leo closes his eyes and sucks, lapping at the fingers in a way that causes a familiar bulge to grow in his brother's plastron. Karai leans over to Raph, placing a few gentle kisses on his neck and lips, before turning back to their basket.
It's clear what tonight's dynamic is going to be. Sometimes it's he and Raph work to bring Karai to ecstasy, sometimes it's Leo and Karai teaming up to tame Raph's fire. Tonight, it's Leo's turn to be shared between them--and in his case, to be used by them, his walls unpeeled in a way that he quietly loves.
Raph carefully removes his fingers just as Leo hears the unmistakable pop of lubricant opening. Of course, Karai's always prepared. "May I do the honors?" she says, and Raph moves away with a nod, pliable in a way that only lust--or love--can really make him.
Leo's gently tipped onto his back, swallowing hard as Raph reaches out, tugging his mask so that it turns over his eyes like a blindfold. "I--"
"We've got ya, Leo," Raph rumbles, his rough growl oddly soothing. Leo takes another breath, tries to relax. He supposes he should be grateful (although perhaps he's also disappointed) that they didn't bring any more toys.
Both sets of hands disappear and he hears sloppy kisses overhead. Leo squirms, suddenly feeling lonely, and they both chuckle. "Ah, poor thing," Karai murmurs, and then her slick fingers are slipping along his automatically lowered tail, pushing inside him. "Is that better?" It is; Leo arches with a soft moan, hands flexing in the blanket, his senses turned up to eleven in the darkness.
They continue to kiss as Karai works at him; digging deeper and deeper past his inner walls as she adds more and fingers. She brushes teasingly up against something deep inside him and Leo bites his lip, his own plastron bulging. He tries to hold in his whimpers, to keep from humping up against his hand. He fails on both counts.
He feels the brush of Raph's cock along his arm; he's finally dropped down, and the sensation is enough to make Leo follow suit. "Good to see ya, Fearless," Raph purrs, and Leo feels his face burn.
"Stop teasing the poor thing," Karai says, but there's laughter in her voice. Raph brushes his cock along Leo's face, teasing dipping between his lips for a heartbeat before moving along to paint his cheeks with precome.
Karai abruptly pulls out her fingers and Leo whines unhappily at the loss. "So needy," she chides, the blanket rustling under her as she pulls away.
"So damn greedy," Raph adds, reaching down to gently pat Leo on the rear. "Come on, Fearless, turn over." He does, carefully rolling onto his hands and knees. Raph tugs his tail up and Leo squirms, ducking his head with shame and wants as he feels his brother's eyes burning into his hole. Raph's length brushes against his tail, across his thighs, and Leo whimpers.
He hears the sound of rustling, of clothes hitting the blanket as Karai strips, and instinctively reaches for the mask. She grabs his hand, calluses rubbing against scales as she tugs it away. "Down, boy," she murmurs, and her tone is the kind of commanding you wouldn't want to resist even if you could.
"C'mere." She tugs him forward, up against her chest. Leo snuffles along her skin, smiling to himself as she giggles at the tickling sensation, before finding his way to her breasts. He sucks at her nipples the way she loves, hard and fast and with just a few bit of teeth.
Raph slowly starts to ease inside and Leo can't help churring; Karai lets out a soft moan at the vibration. "Ya like that, Princess?" he asks. Leo can almost hear Karai's answering smirk as two hands land on his shoulders and shove, pushing him back onto Raph's length and triggering twin groans.
Leo tries to return to Karai's breasts, but she's pushing him down now, between her thighs. The motion lifts his ass further in the air, sending his hungry cock dangling, and Raph lets out an answering churr, taking advantage of the new angle to shuffle forward and push even deeper. So good, Leo wants to gasp, but what comes out is just a soft sigh.
The place between Karai's legs tastes good and tastes better. He loves it--loves the brush of hair against his skin, loves how the legs clamped around his head flicker between skin and scale as he works, loves the gentle way she pets his head even as she shudders and moans. Loves it the way he loves Raph's cock, filling him up, reducing him to a needy mess. Loves them both so much it hurts.
Raph pauses for a second, adjusting, and then his hips snap, sending Leo jolting up against Karai's pussy. She lefts out a sweet trill, her suddenly scale-encrusted thighs providing a delicious counterpoint to the heat throbbing against Leo's face. He's ready the next time Raph moves, but he lets himself be shifted forward anyway, just so he can hear Karai make that sound.
The slap comes out of nowhere and Leo yelps; Karai shrieks at the sudden burst of movement between her legs while Raph lets out a triumphant groan. The second spank lands on the cheek and Leo writhes, torn between pulling away and relishing the strangeness of it all, the way it sends his veins buzzing. He's been spanked before, but never while being fucked.
"Lookit that," Raph purrs, hitting him again and again. "You're gettin' red at both ends, Fearless." A distant part of Leo tells him that he should be above these filthy words, this debauched scene, that he has responsibilities as leader, that he should be ashamed for getting off on being spanked like a child...but the pleasure screaming in his cells and the moans and churrs of the people he loves drown that part out.
There are faint slopping sounds now as they lean over his head to kiss, perhaps with a bit of serpentine stretching on Karai's part. And he loves the sound now, the noise of them moaning into each other's mouths before pulling apart again, because they're sharing it with him.
He doesn't need to wine to get drunk. Their rich smells, their lovely noises, the shove of their perfect bodies against him, are all intoxicating enough on their own.
They let him break down in their arms, let him be reduced to nothing--encourage it, even. And they'll never use this part against him, no matter how angry they get. Because they love him so much it hurts, too.
As the spanking continues he redoubles his efforts, throwing even more effort into his work between Karai's legs and making sure she feels his ever churr and cry, while thrusting his hips back to meet Raph's increasing touches. He's hard now, so hard, so desperate to be touched. Leo relishes that desperation, lets it dig into him like the edge of a knife. Purifying, cleansing.
Not dirty, he thinks. It can't be, because what he's feeling right now, what he knows he's making them feel, is bright and lovely as the stars above.
"Harder," Karai whispers, fingers scratching exquisitely along Leo's shoulders.
"Which one?" Raph asks, half-taunting and half-serious. "Y-ya go a f-few options, to-tonight, Prin-princess."
"Both of you!" she hisses, the words turning into a moan. Raph lets out a churring laugh as they give her, and each other, what they all want.
Raph comes first, his deep, resonant churr ringing in Leo's ear. Then Karai, letting out a final cry as her walls clench and push at Leo's skin, lather him with sweetness. All three of their bodies rock back and forth, Karai's shaking at one end punctuated with Raph's shuddering spurts on the other, while Leo twists and throbs with pleasure in between.
Then they're pulling out, pulling away, lowering him back to the blanket. Leo sucks in a breath as his still-untouched cock brushes cloth, suddenly panicked for the first time since this started.
"Please," he whispers, hands scrabbling and feet twitching. "Please." His voice is hoarse and cracked by now, his mouth slick and sore, his ass throbbing as it brushes against the cloth.
But then there are hands on him again, touching him, Raph's fist circling the base while Karai's finger play across the head and shaft. "You didn't really think we'd leave you alone, treasure?" she asks, and they're touching him, moving in two different directions at once, touching all the different places he loves in all his favorite ways, oh god--
He comes with a wail, lights flashing behind his eyes. He's probably making a huge mess of the blanket, combined with the stuff from Raph he can feel dribbling out of his ass and no doubt plenty of Karai's own fluids, but he really could not give a fucking fuck about any of that right now.
Leo shudders to a halt and slumps back, drifting on a lovely haze. Someone's tugging the blindfold off his sweaty face and the first thing he sees is the stars overhead, which seem to burn even fiercer than before. The spaceship is still up there, maybe, but he doesn't need anyone to take him away tonight. He already feels lighter than air.
Karai's propped up on her elbow beside him, letting him look at her in her lush, muscular glory. Raph lies on the other side, muscles slink and green eyes shining like he's traded them in fro the stars, and Leo isn't even bothered by the smug look at his face.
"You okay?" he asks, while Karai caresses Leo's chest as it slowly stops heaving.
"Y-yeah." He's better than okay, and they are, too. He feels like he did that time they gathered on the roof after Shredder's fall, like they've conquered the world and it's only the beginning.
"I love you." The words slip from him without meaning and he stiffens, unsure. They've never used that word with each other before, not in a setting like this.
But then Raph says, "We know" and leans down to plant a soft kiss on Leo's cheek. "Same here," he breathes. "For both of you."
"Yeah, yeah, I love you assholes, too," Karai chimes in, snuggling down besides them. Raph rolls his eyes and slings his arm around his arm around them both. Leo relishes the touch, how safe and warm he feels between his brother and sister, his boyfriend and girlfriend, two people who will fight to the death for him because he'll always do the same for them.
The three of them look back up at the stars, which continue to bath them in benevolent white light. Leo doesn't let himself think about the long, undoubtably sore walk home, (one of them will probably carry him, anyway, and he won't have to pretend he doesn't love it). He doesn't worry about cleaning of the blanket, or more likely having to dispose of it. He doesn't bury himself in the worries and cares of tomorrow, like he so often does.
Instead he simply absorbs the light, feels the press of their skins, inhales the scent of love still hanging heavy in the air, and sets himself be.